Python Blowfish.new方法代码示例

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def cookie_encode(self, *ids):
        cookie = super(Authentication, self).cookie_encode(*ids)

        bs = Blowfish.block_size
        iv = Random.new().read(bs)
        cipher = Blowfish.new(self.KEY, Blowfish.MODE_CBC, iv)
        # pad cookie to block size.
        # Cookie is ascii base64 + ':', so we can safely pad with '@'.
        missing_bytes = bs - (len(cookie) % bs)
        cookie += '@' * missing_bytes

        return '%s:%s' % (
            b64encode(iv),
            b64encode(cipher.encrypt(cookie))
        )

        return cookie 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def rc4_encrypt(self, key: str, hex_key: bool = False):
        """Encrypt raw state with RC4
        
        Args:
            key (str): Required. Secret key
            hex_key (bool, optional): If key is in hex. Defaults to False.
        
        Returns:
            Chepy: The Chepy object. 

        Examples:
            >>> Chepy("some data").rc4_encrypt("736563726574", hex_key=True).o
            b"9e59bf79a2c0b7d253"
        """
        if hex_key:
            key = binascii.unhexlify(key)
        if isinstance(key, str):
            key = key.encode()
        cipher = ARC4.new(key)
        self.state = binascii.hexlify(cipher.encrypt(self._convert_to_bytes()))
        return self 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def rc4_decrypt(self, key: str, hex_key: bool = False):
        """Decrypt raw state with RC4
        
        Args:
            key (str): Required. Secret key
            hex_key (bool, optional): If key is in hex. Defaults to False.
        
        Returns:
            Chepy: The Chepy object. 

        Examples:
            >>> Chepy("9e59bf79a2c0b7d253").hex_to_str().rc4_decrypt("secret").o
            b"some data"
        """
        if hex_key:
            key = binascii.unhexlify(key)
        if isinstance(key, str):
            key = key.encode()
        cipher = ARC4.new(key)
        self.state = cipher.decrypt(self._convert_to_bytes())
        return self 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def encrypt(imagename,password):
    img = Image.open( imagename )
    img.load()
    data = np.asarray( img, dtype="int32" )
    H, W = len(data), len(data[0])
    print(H)
    print(W)
    pixelstring= ""
    for t in data:
        for p in t:
            for i in p:
                pixelstring= pixelstring + str(100+i)
    pixelstring= pixelstring+','+str(H)+','+str(W)
    
    crypt_obj = Blowfish.new(password, Blowfish.MODE_ECB)
    ciphertext = crypt_obj.encrypt(pad_string(pixelstring))

    cipher= open(imagename+'.crypt', 'w')
    cipher.write(ciphertext) 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def decrypt(ciphername,password):  
    cipher= open(ciphername, 'r')
    ciphertext= cipher.read()

    crypt_obj = Blowfish.new(password, Blowfish.MODE_ECB)
    pixelstring= crypt_obj.decrypt(ciphertext)

    x= pixelstring.split(',')
    H,W= int(x[-2]),int(x[-1])
    pixelstring= x[0]
    pixelstring= [int(pixelstring[i:i+3])-100 for i in range(0, len(pixelstring), 3)]

    data = np.zeros((H, W, 3), dtype=np.uint8)
    c= 0
    for i in range(H):
        for j in range(W):
            data[i,j]= pixelstring[c], pixelstring[c+1], pixelstring[c+2]
            c=c+3

    img = Image.fromarray(data, 'RGB')
    x= ciphername.split('.')
    img.save(x[0]+'_dec.'+x[-2])
    img.show() 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def run(self, module):
        if not HAVE_PYCRYPTO:
            module.log('warning', 'thoughtcrime: missing dependency: pycrypto')
            return None

        if self.zipfile and 'res/raw/blfs.key' in self.zipfile.namelist() and 'res/raw/config.cfg' in self.zipfile.namelist():
            iv = "12345678"  # this has to be done better
            key = self.zipfile.open('res/raw/blfs.key').read()
            key = ''.join(['%x' % ord(x) for x in key])[0:50]
            cipher = Blowfish.new(key, Blowfish.MODE_CBC, iv)
            decode = base64.b64decode(self.zipfile.open('res/raw/config.cfg').read())
            config = cipher.decrypt(decode)
            config = config[:config.find('</config>') + 9]
            config = ET.fromstring(config)
            c2 = config.findall('.//data')[0].get('url_main').split(';')
            phone = config.findall('.//data')[0].get('phone_number')

            module.add_ioc(c2, ['thoughtcrime', 'c2'])

            return json.dumps({'c2': c2, 'phone': phone}, indent=2)
        else:
            return None 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def decrypt_xor(key, data):
    cipher = XOR.new(key)
    return cipher.decrypt(data)


# RC4 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def decrypt_arc4(key, data):
    cipher = ARC4.new(key)
    return cipher.decrypt(data)


# DES 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def decrypt_des_ecb(key, data, iv=None):
    mode = DES.MODE_ECB
    if iv:
        cipher = DES.new(key, mode, iv)
    else:
        cipher = DES.new(key, mode)
    return cipher.decrypt(data) 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def decrypt_des_cbc(key, data, iv=None):
    mode = DES.MODE_CBC
    if iv:
        cipher = DES.new(key, mode, iv)
    else:
        cipher = DES.new(key, mode)
    return cipher.decrypt(data)


# DES3 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def decrypt_des3(key, data):
    cipher = DES3.new(key)
    return cipher.decrypt(data)


# AES 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def decrypt_aes_cbc_iv(key, iv, data):
    mode = AES.MODE_CBC
    cipher = AES.new(key, mode, IV=iv)
    return cipher.decrypt(data)


# Blowfish 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def decrypt_blowfish(key, data):
    cipher = Blowfish.new(key)
    return cipher.decrypt(data)


# RC6 - Custom 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def __init__(self, key, session):
        self.cipher = Blowfish.new(key, Blowfish.MODE_ECB)
        self.session = session 

# 需要导入模块: from Crypto.Cipher import Blowfish [as 别名]
# 或者: from Crypto.Cipher.Blowfish import new [as 别名]
def cookie_decode(self, cookie):
        try:
            a_iv, token = cookie.split(':')
            iv = b64decode(a_iv)
            cipher = Blowfish.new(self.KEY, Blowfish.MODE_CBC, iv)
            cookie = cipher.decrypt(b64decode(token)).replace('@','')
        except ValueError:
            return (None, None)

        return super(Authentication, self).cookie_decode(cookie)